Fix chat commands UI & Jupyternaut model configuration (#1498)

Author: dlqqq

pyproject.toml

@@ -33,8 +33,8 @@ dependencies = [
   "jupyter_ai_persona_manager>=0.0.4",
   "jupyter_ai_litellm>=0.0.1",
   "jupyter_ai_magic_commands>=0.0.2",
-  "jupyter_ai_chat_commands>=0.0.3",
-  "jupyter_ai_jupyternaut>=0.0.4",
+  "jupyter_ai_chat_commands>=0.0.4",
+  "jupyter_ai_jupyternaut>=0.0.5",
 ]
 
 [project.optional-dependencies]